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Some minor fixes for MSM for 3.10 

- Fix a timer problem that causes missed ticks and hangs.
 
   - Fix a problem with the decompressor UART dropping characters.
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Merge tag 'msm-fix-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/fixes-non-critical

From David Brown:
Some minor fixes for MSM for 3.10

  - Fix a timer problem that causes missed ticks and hangs.

  - Fix a problem with the decompressor UART dropping characters.

* tag 'msm-fix-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
  ARM: msm: Fix uncompess.h tx underrun check
  ARM: msm: Stop counting before reprogramming clockevent

Signed-off-by: Olof Johansson <olof@lixom.net>
hifive-unleashed-5.1
Olof Johansson 2013-04-14 20:53:45 -07:00
parent af073c34f3 73a8c28f16
commit 6e527d000f
2 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-msm/include/mach/uncompress.h
View File

@ -37,7 +37,7 @@ static void putc(int c)
* Wait for TX_READY to be set; but skip it if we have a
* TX underrun.
*/
if (UART_DM_SR & 0x08)
if (!(UART_DM_SR & 0x08))
while (!(UART_DM_ISR & 0x80))
cpu_relax();

5
arch/arm/mach-msm/timer.c
View File

@ -62,7 +62,10 @@ static int msm_timer_set_next_event(unsigned long cycles,
{
u32 ctrl = readl_relaxed(event_base + TIMER_ENABLE);
writel_relaxed(0, event_base + TIMER_CLEAR);
ctrl &= ~TIMER_ENABLE_EN;
writel_relaxed(ctrl, event_base + TIMER_ENABLE);
writel_relaxed(ctrl, event_base + TIMER_CLEAR);
writel_relaxed(cycles, event_base + TIMER_MATCH_VAL);
writel_relaxed(ctrl | TIMER_ENABLE_EN, event_base + TIMER_ENABLE);
return 0;